Drop support for Python 3.7/3.8

Signed-off-by: Tsuyoshi Hombashi <tsuyoshi.hombashi@gmail.com>

.github/workflows/ci.yml

@@ -83,11 +83,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "pypy-3.10"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "pypy-3.10"]
         os: [ubuntu-latest, macos-latest, windows-latest]
-        exclude:
-          - os: macos-latest
-            python-version: "3.7"
     timeout-minutes: 20
 
     steps:

README.rst

@@ -129,5 +129,5 @@ Command help
 
 Dependencies
 ============================================
-Python 3.7+
+Python 3.9+
 no external dependencies.

pyproject.toml

@@ -2,8 +2,7 @@
 build-backend = "setuptools.build_meta"
 requires = [
   "setuptools>=64",
-  "setuptools_scm>=7,<8; python_version<'3.8'",
-  "setuptools_scm>=8; python_version>='3.8'",
+  "setuptools_scm>=8",
 ]
 
 [tool.setuptools_scm]
@@ -27,7 +26,7 @@ exclude = '''
 | docs/conf.py
 '''
 line-length = 100
-target-version = ['py37', 'py38', 'py39', 'py310', 'py311', 'py312']
+target-version = ['py39', 'py310', 'py311', 'py312']
 
 [tool.coverage.run]
 branch = true
@@ -61,7 +60,7 @@ skip_glob = [
 
 [tool.mypy]
 ignore_missing_imports = true
-python_version = 3.7
+python_version = 3.9
 
 pretty = true
 
@@ -87,7 +86,7 @@ exclude = [
     "build",
     "dist"
 ]
-pythonVersion = "3.7"
+pythonVersion = "3.9"
 
 [tool.pytest.ini_options]
 testpaths = [
@@ -100,7 +99,7 @@ md_report_verbose = 0
 
 [tool.ruff]
 line-length = 100
-target-version = "py37"
+target-version = "py39"
 exclude = [
     ".eggs/",
     ".tox/",

setup.py

@@ -54,16 +54,14 @@ def make_long_description() -> str:
         "Source": REPOSITORY_URL,
         "Tracker": f"{REPOSITORY_URL:s}/issues",
     },
-    python_requires=">=3.7",
+    python_requires=">=3.9",
     extras_require={"test": TESTS_REQUIRES},
     classifiers=[
         "Development Status :: 4 - Beta",
         "Intended Audience :: Information Technology",
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{37,38,39,310,311,312}
+    py{39,310,311,312}
     pypy3
     build
     cov